That's what makes it fun. No one knows. It's like playing the stock market or buying lottery tickets. I have no problem buying a few domain names. The thing you have to understand is not to pay more for them then you are willing to completely lose. I'm very comfortable with the small amount of money I've paid to own some domain names. I plan to use 2 of the 8 I have and if the others just wither and die, then it really doesn't matter. It's still just fun to speculate and play "what if" now and then. You never win anything if you don't play and I think buying a few domain names is infinitely more sound than buying a lottery ticket every week.